Demco Hydraulic Brake Actuator w/ Electric Lockout - Disc - Primed - Adjustable Channel - 8,000 lbs

Demco Brake Actuator - DM8759422

Surge actuator has a corrosion-resistant composite master cylinder. Electric lockout activates automatically to keep brakes from actuating when in reverse. Mount coupler attachments (sold separately) in 1 of 3 positions on channel. Bolt or weld on.

Features:

• Hydraulic actuator activates trailer's brakes when tow vehicle slows or stops
• Electric reverse lockout lets you back up without actuating trailer brakes
  • Solenoid activates automatically when you shift into reverse
• Adjustable channel has 3 different mounting positions for coupler (sold separately)
• Composite master cylinder is durable and efficient
  • Glass-reinforced nylon construction resists rust and corrosion
  • Large reservoir provides increased capacity for brake fluid
  • Automotive-style diaphragm cap creates completely enclosed system to help prevent contamination of fluid
• Acetal copolymer lining provides smooth operation as actuator telescopes in and out
• Breakaway included
• Heavy-duty steel construction
• Primed finish
• Bolt-on or weld-on installation
  • Requires 1/2" x 4-1/2" Grade-5 bolts (not included) for bolt-on mounting
• Made in the USA

Specs:

• Application: trailers with hydraulic disc brakes
• Gross towing weight: 8,000 lbs
• Maximum tongue weight: 800 lbs
• Channel width: approximately 3"
• Channel height: 8"
• Mounting: straight, 3" wide trailer tongue
• Model number: DA91
• 1-Year warranty

When you apply the brakes in your tow vehicle, deceleration occurs and momentum pushes your trailer toward the rear of your vehicle. With surge brake systems, the hydraulic actuator is triggered as your trailer moves forward, once your tow vehicle starts to slow down. When this happens, the actuator contracts, applying force to its master cylinder. This in turn supplies the necessary hydraulic pressure to engage your trailer's brakes.

Electric Reverse Lockout

The electric reverse lockout on this trailer brake actuator is automatically activated when you shift your tow vehicle into reverse. The solenoid wires into your trailer connector - which connects to your tow vehicle - so that it can detect when you are in reverse. When your vehicle is in reverse, the solenoid ensures that the hydraulic actuator does not activate your trailer's brakes, thus allowing you to back up your rig. To use the lockout feature, you must have a 5-pole flat, 6-way round, or 7-pole trailer connector.

Adjustable Channel Design

The adjustable channel on this trailer brake actuator allows for ultimate versatility. Mount almost any type of coupler (sold separately) - from a standard ball coupler to a lunette ring or clevis attachment - to fit your specific application. In addition, the 3 mounting positions on the channel let you adjust the height of the coupler. Just place the coupler so that it matches the height of the ball mount or other hitch attachment on your tow vehicle and you will be able to tow your trailer levelly.

8759422 Demco DA91 Hydraulic Trailer Brake Actuator for Disc Brakes - Electric Lock-Out - Channel Center - 8,000 lbs